Muwatta Malik, Book 56, Hadith 1816 (In-Book)

Malik related to me from Abu'z-Zinad from al-Araj from Abu Hurayra that the Messenger of Allah, may Allah bless him and grant him peace, said, "Let none of you complain about time, for Allah is time.'

وَحَدَّثَنِي مَالِكٌ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏ "‏ لاَ يَقُلْ أَحَدُكُمْ يَا خَيْبَةَ الدَّهْرِ ‏.‏ فَإِنَّ اللَّهَ هُوَ الدَّهْرُ ‏" ‏ ‏.‏

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also referenced under: Book 56, Hadith 3 (USC-MSA)