Volume 3, Book 32, Number 232:
Narrated Ibn ‘Umar:
Some men amongst the companions of the Prophet were shown in their dreams that the night of
Qadr was in the last seven nights of Ramadan. Allah’s Apostle said, “It seems that all your dreams
agree that (the Night of Qadr) is in the last seven nights, and whoever wants to search for it (i.e. the
Night of Qadr) should search in the last seven (nights of Ramadan).”