وَحَدَّثَنِي زِيَادٌ، عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ تَحَرَّوْا لَيْلَةَ الْقَدْرِ فِي الْعَشْرِ الأَوَاخِرِ مِنْ رَمَضَانَ ‏"‏ ‏.‏

Ziyad related to me from Malik from Hisham ibn Urwa from hisfather that the Messenger of Allah, may Allah bless him and grant himpeace, said, "Search for Laylat al-Qadr in the last ten days ofRamadan." Translation Not Available

Book Ref: Muwatta Imam Malik Book 19 Hadith 701
Web Ref:  Muwatta Imam Malik Book 19 Hadith 11