The Prophet (ﷺ) said, "Look for the Night of Qadr in the last ten nights of Ramadan ,' on the night when nine or seven or five nights remain out of the last ten nights of Ramadan (i.e. 21, 23, 25, respectively).
Virtues of the Night of Qadr
Sahih al-Bukhari - Hadith 2021
The Command to Seek Laylat al-Qadr
The Prophet's instruction to "look for" the Night of Decree indicates this is a religious obligation requiring active pursuit through worship and devotion, not mere passive waiting.
Wisdom of the Last Ten Nights
Allah conceals the exact night to increase believers' striving throughout these blessed nights, multiplying rewards for those who exert themselves in worship seeking divine pleasure.
Significance of Odd Nights
The specification of odd nights (21st, 23rd, 25th) demonstrates the Sunnah's precision. Scholars note these are the most likely nights, though one should worship all final ten nights to ensure catching this blessed occasion.
Spiritual Preparation
The true seeker prepares through sincere repentance, increased Quran recitation, abundant supplication, and night prayers - for this night's worship is better than a thousand months of ordinary worship.