(44) باب مَا يُنْهَى مِنَ السِّبَابِ وَاللَّعْنِ
Narrated 'Ubada bin As-Samit:
Allah's Messenger (ﷺ) went out to inform the people about the (date of the Night of decree (Al-Qadr). There happened a quarrel between two Muslim men. The Prophet (ﷺ) said, "I came out to inform you about the Night of Al-Qadr, but as so-and-so and so-and-so quarrelled, so the news about it had been taken away; and may be it was better for you. So look for it in the ninth, the seventh, or the fifth (of the last ten days of Ramadan).
Reference: Sahih al-Bukhari 6049
In-book reference: Book 78, Hadith 79
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 73, Hadith 75