Ibn Umar (Allah be pleased with them) reported Allah's Messenger (ﷺ) as saying:
Seek it (Lailat-ul-Qadr) in the last (ten nights). If one among you shows slackness and weakness (in the earlier part of Ramadan), it should not be allowed to prevail upon him in the last week.
Reference: Sahih Muslim 1165 e In-book : Book 13, Hadith 271 USC-MSA web (English) : Book 6, Hadith 2621 (deprecated)
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