Muwatta Imam Malik Book of I'tikaf in Ramadan, Hadith 14
Ziyad related to me from Malik from Humayd at-Tawil that 'Anas ibn Malik said, "The Messenger of Allah ﷺ came out to us in Ramadan and said, 'I was shown a certain night in Ramadan and then two men abused each other and it was taken away. Look for it on the ninth and the seventh and the fifth.' "
وَحَدَّثَنِي زِيَادٌ، عَنْ مَالِكٍ، عَنْ حُمَيْدٍ الطَّوِيلِ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّهُ قَالَ خَرَجَ عَلَيْنَا رَسُولُ اللَّهِ ﷺ فِي رَمَضَانَ فَقَالَ " إِنِّي أُرِيتُ هَذِهِ اللَّيْلَةَ فِي رَمَضَانَ حَتَّى تَلاَحَى رَجُلاَنِ فَرُفِعَتْ فَالْتَمِسُوهَا فِي التَّاسِعَةِ وَالسَّابِعَةِ وَالْخَامِسَةِ " .