AHMAD 6258:
from al-Watr Lays Biḥatm —
[Machine] "A man said to Ibn Umar: Indeed, Abu Hurairah claims that Witr (an odd-numbered prayer performed after Isha prayer) is not obligatory. Ibn Umar replied: A man asked the Messenger of Allah ﷺ about the night prayer (Tahajjud). He replied: The night prayer is to be performed in pairs of two rak'ahs, and if you fear the approach of dawn, perform one rak'ah of Witr."
أحمد ٦٢٥٨:
عن الوتر ليس بحتم —
رَجُلٌ لِابْنِ عُمَرَ إِنَّ أَبَا هُرَيْرَةَ يَزْعُمُ أَنَّ الْوَتْرَ لَيْسَ بِحَتْمٍ؟ قَالَ سَأَلَ رَجُلٌ رَسُولَ اللهِ ﷺ عَنْ صَلَاةِ اللَّيْلِ؟ فَقَالَ صَلَاةُ اللَّيْلِ مَثْنَى مَثْنَى فَإِذَا خِفْتَ الصُّبْحَ فَأَوْتِرْ بِوَاحِدَةٍ
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