Arabic (Original)
حَدَّثَنَا عَبْدُ الصَّمَدِ حَدَّثَنَا أَبَانُ يَعْنِي ابْنَ يَزِيدَ الْعَطَّارَ قَالَ حَدَّثَنَا عَاصِمٌ عَنْ مَعْبَدِ بْنِ خَالِدٍ عَنْ سَوَاءٍ الْخُزَاعِيِّ عَنْ حَفْصَةَ ابْنَةِ عُمَرَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ كَانَ إِذَا أَرَادَ أَنْ يَرْقُدَ وَضَعَ يَدَهُ الْيُمْنَى تَحْتَ خَدِّهِ الْأَيْمَنِ ثُمَّ قَالَ اللَّهُمَّ قِنِي عَذَابَكَ يَوْمَ تَبْعَثُ عِبَادَكَ ثَلَاثَ مِرَارٍ وَكَانَتْ يَدُهُ الْيُمْنَى لِطَعَامِهِ وَشَرَابِهِ وَكَانَتْ يَدُهُ الْيُسْرَى لِسَائِرِ حَاجَتِهِ.
English Translation
'Abd al-Samad told us, Aban - meaning Ibn Yazid al-'Attar - told us, he said 'Asim told us, from Ma'bad b. Khalid, from Sawa' al-Khuza'i, from Hafsah bint 'Umar, that when the Messenger of Allah (peace and blessings be upon him) wanted to sleep, he would place his right hand under his right cheek, then say, "O Allah, protect me from Your punishment on the day You resurrect Your servants" - three times. His right hand was for his food and drink, and his left hand was for the rest of his needs.