Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
suyuti:5624a

I heard Allah's Apostle ﷺ as saying: The Satan is present with any one of you in everything he does; he is present even when he eats food; so if any one of you drops a mouthful he should remove away anything filthy on it and eat it and not leave for the devil; and when he finishes (food) he should lick his fingers, for he does not know in what portion of his food the blessing lies. (Using translation from Muslim 2033d)   

السيوطي:٥٦٢٤a

"إِنَّ الشَّيطَانَ يَحْضُرُ أَحَدَكُم عِنْدَ كُلِّ شَيْءٍ مِنْ شَأْنِه، حتَّى يَحْضُرَهُ عِنْدَ طَعَامِهِ، فَإِذَا سَقَطَتْ مِنْ أحَدِكُمْ اللُّقمَةُ فَليُمْطَ مَا كَانَ بِها مِن أَذًى ثُمَّ لْيَأْكُلْها وَلَا يَدَعْها لِلشَّيطَانِ، فَإِذَا فَرَغَ فَليَلعَق أَصَابِعَه فَإِنَّهُ لَا يَدْرِي فيِ أَيِّ طَعَامِهِ تَكُونُ الْبَرَكَةُ".  

[م] مسلم [هب] البيهقى في شعب الإيمان عن جابر)

See similar narrations below:

Collected by Muslim, Aḥmad, Nasāʾī's Kubrá
muslim:2033bMuḥammad b. ʿAbdullāh b. Numayr from my father > Sufyān > Abū al-Zubayr > Jābir

When any one of you drops a mouthful he should pick it up and remove any of the filth on it, and then eat it, and should not leave it for the Satan, and should not wipe his hand with towel until he has licked his fingers, for he does not know in what portion of the food the blessing lies.  

مسلم:٢٠٣٣bحَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ حَدَّثَنَا أَبِي حَدَّثَنَا سُفْيَانُ عَنْ أَبِي الزُّبَيْرِ عَنْ جَابِرٍ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ إِذَا وَقَعَتْ لُقْمَةُ أَحَدِكُمْ فَلْيَأْخُذْهَا فَلْيُمِطْ مَا كَانَ بِهَا مِنْ أَذًى وَلْيَأْكُلْهَا وَلاَ يَدَعْهَا لِلشَّيْطَانِ وَلاَ يَمْسَحْ يَدَهُ بِالْمِنْدِيلِ حَتَّى يَلْعَقَ أَصَابِعَهُ فَإِنَّهُ لاَ يَدْرِي فِي أَىِّ طَعَامِهِ الْبَرَكَةُ  

muslim:2033dʿUthmān b. Abū Shaybah > Jarīr > al-Aʿmash > Abū Sufyān > Jābir

I heard Allah's Apostle ﷺ as saying: The Satan is present with any one of you in everything he does; he is present even when he eats food; so if any one of you drops a mouthful he should remove away anything filthy on it and eat it and not leave for the devil; and when he finishes (food) he should lick his fingers, for he does not know in what portion of his food the blessing lies.  

مسلم:٢٠٣٣dحَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ حَدَّثَنَا جَرِيرٌ عَنِ الأَعْمَشِ عَنْ أَبِي سُفْيَانَ عَنْ جَابِرٍ قَالَ

سَمِعْتُ النَّبِيَّ ﷺ يَقُولُ إِنَّ الشَّيْطَانَ يَحْضُرُ أَحَدَكُمْ عِنْدَ كُلِّ شَىْءٍ مِنْ شَأْنِهِ حَتَّى يَحْضُرَهُ عِنْدَ طَعَامِهِ فَإِذَا سَقَطَتْ مِنْ أَحَدِكُمُ اللُّقْمَةُ فَلْيُمِطْ مَا كَانَ بِهَا مِنْ أَذًى ثُمَّ لْيَأْكُلْهَا وَلاَ يَدَعْهَا لِلشَّيْطَانِ فَإِذَا فَرَغَ فَلْيَلْعَقْ أَصَابِعَهُ فَإِنَّهُ لاَ يَدْرِي فِي أَىِّ طَعَامِهِ تَكُونُ الْبَرَكَةُ  

ahmad:15237Ḥasan > Ibn Lahīʿah > Abū al-Zubayr > Jābir

[Machine] The Messenger of Allah ﷺ said: When one of you drops a morsel, he should remove what has touched it from it, and then he should eat it. He should not leave it for the devil, nor should he wipe his hand with the towel until he has licked his fingers. Indeed, a man does not know in which of his food blessings have been sent down for him, and the devil lies in wait for the son of Adam at every thing, even in his food.  

أحمد:١٥٢٣٧حَدَّثَنَا حَسَنٌ حَدَّثَنَا ابْنُ لَهِيعَةَ حَدَّثَنَا أَبُو الزُّبَيْرِ عَنْ جَابِرٍ

أَنَّ رَسُولَ اللهِ ﷺ قَالَ إِذَا أَكَلَ أَحَدُكُمْ فَسَقَطَتْ لُقْمَتُهُ فَلْيُمِطْ مَا أَرَابَهُ مِنْهَا ثُمَّ لِيَطْعَمْهَا وَلَا يَدَعْهَا لِلشَّيْطَانِ وَلَا يَمْسَحْ أَحَدُكُمْ يَدَهُ بِالْمِنْدِيلِ حَتَّى يَلْعَقَ يَدَهُ فَإِنَّ الرَّجُلَ لَا يَدْرِي فِي أَيِّ طَعَامِهِ يُبَارَكُ لَهُ فَإِنَّ الشَّيْطَانَ يَرْصُدُ ابْنَ آدَمَ عِنْدَ كُلِّ شَيْءٍ حَتَّى عِنْدَ طَعَامِهِ  

ahmad:14552Abū Aḥmad > Sufyān > Abū al-Zubayr > Jābir

When any one of you drops a mouthful he should pick it up and remove any of the filth on it, and then eat it, and should not leave it for the Satan, and should not wipe his hand with towel until he has licked his fingers, for he does not know in what portion of the food the blessing lies. (Using translation from Muslim 2033b)   

أحمد:١٤٥٥٢حَدَّثَنَا أَبُو أَحْمَدَ أَخْبَرَنَا سُفْيَانُ عَنْ أَبِي الزُّبَيْرِ عَنْ جَابِرٍ قَالَ

قَالَ رَسُولُ اللهِ ﷺ إِذَا سَقَطَتِ اللُّقْمَةُ مِنْ يَدِ أَحَدِكُمْ فَلْيُمِطْ مَا كَانَ عَلَيْهَا مِنَ الْأَذَى وَلَا يَدَعْهَا لِلشَّيْطَانِ وَلَا يَمْسَحْ يَدَهُ بِالْمِنْدِيلِ وَلْيَلْعَقْ أَصَابِعَهُ فَإِنَّهُ لَا يَدْرِي فِي أَيِّ طَعَامِهِ الْبَرَكَةُ  

ahmad:14629ʿAbdullāh b. al-Walīd al--Adhī Yuqāl Lah al-ʿAdanī Ḥaddathanāsufyān > Abū al-Zubayr > Jābir

When any one of you drops a mouthful he should pick it up and remove any of the filth on it, and then eat it, and should not leave it for the Satan, and should not wipe his hand with towel until he has licked his fingers, for he does not know in what portion of the food the blessing lies. (Using translation from Muslim 2033b)   

أحمد:١٤٦٢٩حَدَّثَنَا عَبْدُ اللهِ بْنُ الْوَلِيدِ الَّذِي يُقَالَ لَهُ الْعَدَنِيُّ حَدَّثَنَاسُفْيَانُ عَنْ أَبِي الزُّبَيْرِ عَنْ جَابِرٍ قَالَ

قَالَ رَسُولُ اللهِ ﷺ إِذَا سَقَطَتْ لُقْمَةُ أَحَدِكُمْ فَلْيُمِطْ مَا كَانَ بِهَا مِنْ أَذًى ثُمَّ لِيَأْكُلْهَا وَلَا يَدَعْهَا لِلشَّيْطَانِ وَلَا يَمْسَحْ أَحَدُكُمْ يَدَهُ بِالْمِنْدِيلِ حَتَّى يَلْعَقَ أَصَابِعَهُ أَوْ يُلْعِقَهَا فَإِنَّهُ لَا يَدْرِي فِي أَيِّ طَعَامِهِ الْبَرَكَةُ  

nasai-kubra:6746ʿAmr b. Manṣūr > Abū Nuʿaym > Sufyān > Abū al-Zubayr > Jābir

When any one of you drops a mouthful he should pick it up and remove any of the filth on it, and then eat it, and should not leave it for the Satan, and should not wipe his hand with towel until he has licked his fingers, for he does not know in what portion of the food the blessing lies. (Using translation from Muslim 2033b)   

الكبرى للنسائي:٦٧٤٦أَخْبَرَنَا عَمْرُو بْنُ مَنْصُورٍ قَالَ أَخْبَرَنَا أَبُو نُعَيْمٍ قَالَ حَدَّثَنَا سُفْيَانُ عَنْ أَبِي الزُّبَيْرِ عَنْ جَابِرٍ قَالَ

قَالَ رَسُولُ اللهِ ﷺ «إِذَا سَقَطَتْ مِنْ أَحَدِكُمْ لُقْمَةٌ فَلْيُمِطْ مَا أَصَابَهَا مِنْ أَذًى فَلْيَأْكُلْهَا وَلَا يَدَعْهَا لِلشَّيْطَانِ وَلَا يَمْسَحْ يَدَهُ بِالْمِنْدِيلِ حَتَّى يَلْعَقَهَا أَوْ يُلْعِقَهَا فَإِنَّهُ لَا يَدْرِي فِي أَيِّ طَعَامِهِ الْبَرَكَةُ»