حَدَّثَنَا سُفْيَانُ عَنِ الزُّهْرِيِّ عَنْ سَالِمٍ عَنْ أَبِيهِ رَأَى رَجُلٌ أَنَّ لَيْلَةَ الْقَدْرِ لَيْلَةُ سَبْعٍ وَعِشْرِينَ أَوْ كَذَا وَكَذَا فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَرَى رُؤْيَاكُمْ قَدْ تَوَاطَأَتْ فَالْتَمِسُوهَا فِي الْعَشْرِ الْبَوَاقِي فِي الْوِتْرِ مِنْهَا
مسند امام احمد بن حنبل · Hadith 4547
It was narrated from Saalim, from his father that a man thought that Laylat al-Qadr was on the twenty-seventh or such and such. The Messenger of Allah (PBUH) said: "I see your dreams are in agreement; seek it in the last ten (nights), on the odd numbered ones.
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020