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.
quran:18:23

And never say of anything, "Indeed, I will do that tomorrow,"  

And never say regarding something, that is, for the purpose of ˹doing˺ something, ‘I will indeed do that tomorrow’, in other words, ˹I will do something˺ at some future ˹point˺ in time,
القرآن:١٨:٢٣

وَلَا تَقُولَنَّ لِشَيْءٍ إِنِّي فَاعِلٌ ذَٰلِكَ غَدًا  

{ولا تقولن لشيء} أي لأجل شيء {إني فاعل ذلك غدا} أي قيما يستقبل من الزمان.

See similar narrations below:

Collected by Bukhārī, Nasāʾī, Abū Dāwūd, Ibn Mājah, Aḥmad, Nasāʾī's Kubrá
bukhari:1553Abū Maʿmar > ʿAbd al-Wārith > Ayyūb > Nāfiʿ > Kān

Narrated Nafi', 'Whenever Ibn 'Umar finished his morning Salat at Dhul-Hulaifa he would get his Rahila (mount) prepared. Then, he would ride on it, and after it had stood up straight (ready to set out), he would face Al-Qiblah (the Ka,bah at Makkah) while sitting (on his mount) and recite Talbiya. When he had reached the boundaries of the Haram (or Makkah), he would stop recitation of Talbiya till he reached Dhi-Tuwa (near Makkah) where he would pass the night till it was dawn. After offering the morning Salat, he would take a bath. He claimed that Messenger of Allah ﷺ had done the same.  

البخاري:١٥٥٣وَقَالَ أَبُو مَعْمَرٍ حَدَّثَنَا عَبْدُ الْوَارِثِ حَدَّثَنَا أَيُّوبُ عَنْ نَافِعٍ قَالَ كَانَ ابْنُ عُمَرَ ؓ إِذَا صَلَّى بِالْغَدَاةِ بِذِي الْحُلَيْفَةِ أَمَرَ بِرَاحِلَتِهِ فَرُحِلَتْ ثُمَّ رَكِبَ فَإِذَا اسْتَوَتْ بِهِ اسْتَقْبَلَ الْقِبْلَةَ قَائِمًا ثُمَّ يُلَبِّي حَتَّى يَبْلُغَ الْمَحْرَمَ ثُمَّ يُمْسِكُ حَتَّى إِذَا جَاءَ ذَا طُوًى بَاتَ بِهِ حَتَّى يُصْبِحَ فَإِذَا صَلَّى الْغَدَاةَ اغْتَسَلَ وَزَعَمَ

أَنَّ رَسُولَ اللَّهِ ﷺ فَعَلَ ذَلِكَ  

تَابَعَهُ إِسْمَاعِيلُ عَنْ أَيُّوبَ فِي الْغَسْلِ
nasai:483ʿAmr b. Yazīd > Bahz b. Asad > Shuʿbah > al-Ḥakam > Ṣallá Binā Saʿīd b. Jubayr Bijamʿ al-Maghrib Thalāth Biʾiqāmah Thum Sallam Thum Ṣallá al-ʿIshāʾ Rakʿatayn Thum Dhakar > ʿAbdullāh b. ʿUmar Faʿal Dhalik And Dhakar

"Sa'eed bin Jubair led us in prayer in Jam'. (He prayed) Maghrib, three Rak'ahs with an Iqamah, then he prayed 'Isha', two Rak'ahs. Then he mentioned that 'Abdullah bin 'Umar had done that, and he mentioned that the Messenger of Allah ﷺ had done that."  

النسائي:٤٨٣أَخْبَرَنَا عَمْرُو بْنُ يَزِيدَ قَالَ حَدَّثَنَا بَهْزُ بْنُ أَسَدٍ قَالَ حَدَّثَنَا شُعْبَةُ قَالَ أَخْبَرَنِي الْحَكَمُ قَالَ صَلَّى بِنَا سَعِيدُ بْنُ جُبَيْرٍ بِجَمْعٍ الْمَغْرِبَ ثَلاَثًا بِإِقَامَةٍ ثُمَّ سَلَّمَ ثُمَّ صَلَّى الْعِشَاءَ رَكْعَتَيْنِ ثُمَّ ذَكَرَ أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ فَعَلَ ذَلِكَ وَذَكَرَ

أَنَّ رَسُولَ اللَّهِ ﷺ فَعَلَ ذَلِكَ  

abudawud:1891Abū Kāmil > Sulaym b. Akhḍar > ʿUbaydullāh > Nāfiʿ > Ibn ʿUmar Ramal from al-Ḥajar > al-Ḥajar And Dhakar

Nafi’ said Ibn ‘Umar walked proudly (ramal) from the corner (Black Stone) to the corner (Black Stone) and mentioned that the Apostle of Allaah ﷺ had done so.  

أبو داود:١٨٩١حَدَّثَنَا أَبُو كَامِلٍ حَدَّثَنَا سُلَيْمُ بْنُ أَخْضَرَ حَدَّثَنَا عُبَيْدُ اللَّهِ عَنْ نَافِعٍ أَنَّ ابْنَ عُمَرَ رَمَلَ مِنَ الْحَجَرِ إِلَى الْحَجَرِ وَذَكَرَ

أَنَّ رَسُولَ اللَّهِ ﷺ فَعَلَ ذَلِكَ  

ibnmajah:1218Abū Bakr b. Khalāad > Sufyān b. ʿUyaynah > Manṣūr > Ibrāhīm > ʿAlqamah > Ibn Masʿūd Sajad Sajdata al-Sahw Baʿd al-Salām And Dhakar

It was narrated from ‘Alqamah that Ibn Mas’ud prostrated twice for the prostrations of forgetfulness after the Salam, and he mentioned that the Prophet ﷺ did that.”  

ابن ماجة:١٢١٨حَدَّثَنَا أَبُو بَكْرِ بْنُ خَلاَّدٍ حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ عَنْ مَنْصُورٍ عَنْ إِبْرَاهِيمَ عَنْ عَلْقَمَةَ أَنَّ ابْنَ مَسْعُودٍ سَجَدَ سَجْدَتَىِ السَّهْوِ بَعْدَ السَّلاَمِ وَذَكَرَ

أَنَّ النَّبِيَّ ﷺ فَعَلَ ذَلِكَ  

ahmad:4828Rawḥ > Ḥammād > Ḥumayd > Bakr b. ʿAbdullāh

Nafi’ said Ibn ‘Umar walked proudly (ramal) from the corner (Black Stone) to the corner (Black Stone) and mentioned that the Apostle of Allaah ﷺ had done so. (Using translation from Abū Dāʾūd 1891)  

أحمد:٤٨٢٨حَدَّثَنَا رَوْحٌ حَدَّثَنَا حَمَّادٌ عَنْ حُمَيْدٍ عَنْ بَكْرِ بْنِ عَبْدِ اللهِ أَنَّ ابْنَ عُمَرَ كَانَ يَهْجَعُ هَجْعَةً بِالْبَطْحَاءِ وَذَكَرَ

أَنَّ رَسُولَ اللهِ ﷺفَعَلَ ذَلِكَ  

nasai-kubra:383ʿAmr b. Yazīd > Bahz > Shuʿbah > al-Ḥakam > Ṣallá Binā Saʿīd b. Jubayr Bijamʿ al-Maghrib Thalāth Biʾiqāmah Thum Sallam Thum Ṣallá al-ʿIshāʾ Rakʿatayn Thum Dhakar > ʿAbdullāh b. ʿUmar Faʿal Dhalik And Dhakar

Nafi’ said Ibn ‘Umar walked proudly (ramal) from the corner (Black Stone) to the corner (Black Stone) and mentioned that the Apostle of Allaah ﷺ had done so. (Using translation from Abū Dāʾūd 1891)  

الكبرى للنسائي:٣٨٣أَخْبَرَنَا عَمْرُو بْنُ يَزِيدَ قَالَ حَدَّثَنَا بَهْزٌ قَالَ حَدَّثَنَا شُعْبَةُ قَالَ أَخْبَرَنِي الْحَكَمُ قَالَ «§صَلَّى بِنَا سَعِيدُ بْنُ جُبَيْرٍ بِجَمْعٍ الْمَغْرِبَ ثَلَاثًا بِإِقَامَةٍ ثُمَّ سَلَّمَ ثُمَّ صَلَّى الْعِشَاءَ رَكْعَتَيْنِ ثُمَّ ذَكَرَ أَنَّ عَبْدَ اللهِ بْنَ عُمَرَ فَعَلَ ذَلِكَ وَذَكَرَ

أَنَّ رَسُولَ اللهِ ﷺ فَعَلَ ذَلِكَ»