Messenger of Allah ﷺ said, "Search for the Night of Qadr in the odd nights of the last ten days of Ramadan."

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ تَحَرَّوْا لَيْلَةَ الْقَدْرِ فِي الْوِتْرِ مِنَ الْعَشْرِ الأَوَاخِرِ مِنْ رَمَضَانَ