Does the Night of Qadr rotate every year or is it a fixed night of Ramadan?
Prophet of Allah صَلَّى اللّٰهُ عَلَيْهِ وَسَلَّم used to observe I'tikaf in the last ten days of Ramadan and used to say: Look for the Night of Qadr in the last ten days of Ramadan.
At the onset of the last ten days of Ramadan, the Prophet صَلَّى اللّٰهُ عَلَيْهِ وَسَلَّم used to tighten his waist belt (i.e. worked hard), used to stay up (all night for worship) and wake up his family (for ibadah) too.
Important points according to Sahih Muslim Hadith: 2771: