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.
darimi:1309al-Ḥasan b. al-Rabīʿ > Abū al-Aḥwaṣ > al-Aʿmash > Abū Ṣāliḥ > Abū Hurayrah

"The Messenger of Allah said: 'The most burdensome prayers for the hypocrites are the 'Isha' prayer and the Fajr prayer. If only they knew what (reward) there is in them, they would come to them even if they had to crawl.'" (Using translation from Ibn Mājah 797)   

الدارمي:١٣٠٩أَخْبَرَنَا الْحَسَنُ بْنُ الرَّبِيعِ حَدَّثَنَا أَبُو الْأَحْوَصِ عَنِ الْأَعْمَشِ عَنْ أَبِي صَالِحٍ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ «إِنَّهُ لَيْسَ مِنْ صَلَاةٍ أَثْقَلُ عَلَى الْمُنَافِقِينَ مِنْ صَلَاةِ الْعِشَاءِ الْآخِرَةِ وَصَلَاةِ الْفَجْرِ وَلَوْ يَعْلَمُونَ مَا فِيهِمَا لَأَتَوْهُمَا وَلَوْ حَبْوًا»  


See similar narrations below:

Collected by Ibn Mājah, Aḥmad, Ṭabarānī, Suyūṭī
ibnmajah:797Abū Bakr b. Abū Shaybah > Abū Muʿāwiyah > al-Aʿmash > Abū Ṣāliḥ > Abū Hurayrah

"The Messenger of Allah said: 'The most burdensome prayers for the hypocrites are the 'Isha' prayer and the Fajr prayer. If only they knew what (reward) there is in them, they would come to them even if they had to crawl.'"  

ابن ماجة:٧٩٧حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ أَنْبَأَنَا أَبُو مُعَاوِيَةَ عَنِ الأَعْمَشِ عَنْ أَبِي صَالِحٍ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ إِنَّ أَثْقَلَ الصَّلاَةِ عَلَى الْمُنَافِقِينَ صَلاَةُ الْعِشَاءِ وَصَلاَةُ الْفَجْرِ وَلَوْ يَعْلَمُونَ مَا فِيهِمَا لأَتَوْهُمَا وَلَوْ حَبْوًا  

ahmad:10100Wakīʿ > al-Aʿmash > Abū Ṣāliḥ > Abū Hurayrah

"The Messenger of Allah said: 'The most burdensome prayers for the hypocrites are the 'Isha' prayer and the Fajr prayer. If only they knew what (reward) there is in them, they would come to them even if they had to crawl.'" (Using translation from Ibn Mājah 797)  

أحمد:١٠١٠٠حَدَّثَنَا وَكِيعٌ حَدَّثَنَا الْأَعْمَشُ عَنِ أَبِي صَالِحٍ عَنِ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللهِ ﷺ إِنَّ أَثْقَلَ الصَّلَاةِ عَلَى الْمُنَافِقِينَ صَلَاةُ الْعِشَاءِ وَالْفَجْرِ وَلَوْ يَعْلَمُونَ مَا فِيهِمَا لَأَتَوْهُمَا وَلَوْ حَبْوًا  

tabarani:10082Muḥammad b. ʿAbdullāh al-Ḥaḍramī > Saʿīd b. ʿAmr al-Ashʿathī > ʿAbthar b. al-Qāsim > al-Aʿmash > Abū Isḥāq > Abū al-Aḥwaṣ > ʿAbdullāh

[Machine] The messenger of Allah, ﷺ , said: "No prayer is heavier upon the hypocrites than the prayer of Isha and Fajr, and if they knew the reward they have in them, they would attend them even if crawling."  

الطبراني:١٠٠٨٢حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللهِ الْحَضْرَمِيُّ ثنا سَعِيدُ بْنُ عَمْرٍو الْأَشْعَثِيُّ ثنا عَبْثَرُ بْنُ الْقَاسِمِ عَنِ الْأَعْمَشِ عَنْ أَبِي إِسْحَاقَ عَنْ أَبِي الْأَحْوَصِ عَنْ عَبْدِ اللهِ قَالَ

قَالَ رَسُولُ اللهِ ﷺ «مَا صَلَاةٌ أَثْقَلَ عَلَى الْمُنَافِقِينَ مِنْ صَلَاةِ الْعِشَاءِ وَالْفَجْرِ وَلَوْ يَعْلَمُونَ مَا فِيهِمَا مِنَ الْفَضْلِ لَأَتَوْهُمَا وَلَوْ حَبْوًا»  

suyuti:6084a
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السيوطي:٦٠٨٤a

"إِنّ أَثقلَ الصلاةِ على المنافقين صلاةُ العشاءِ والفجرِ، ولو عَلِموا ما فِيهمَا من الفضل لأَتَوْهُما ولو حَبْوًا".  

الخطيب، وابن عساكر عن معاوية بن إِسحاق بن طلحة بن عبيد اللَّه عن أبيه عن جده، [طب] الطبرانى في الكبير عن ابن مسعود