By Allah, I know well about it. Shu'ba said: To the best of my knowledge it was the twenty-seventh night for which the Messenger of Allah ﷺ commanded us to stand for prayer. Shu'ba doubted these words: That it was the night for which the Messenger of Allah ﷺ commanded us to stand for prayer. And (he further) said: This was narrated to me by a friend of mine from him (the Holy Prophet).
أُبَىٌّ فِي لَيْلَةِ الْقَدْرِ وَاللَّهِ إِنِّي لأَعْلَمُهَا قَالَ شُعْبَةُ وَأَكْبَرُ عِلْمِي هِيَ اللَّيْلَةُ الَّتِي أَمَرَنَا رَسُولُ اللَّهِ ﷺ بِقِيَامِهَا هِيَ لَيْلَةُ سَبْعٍ وَعِشْرِينَ وَإِنَّمَا شَكَّ شُعْبَةُ فِي هَذَا الْحَرْفِ هِيَ اللَّيْلَةُ الَّتِي أَمَرَنَا بِهَا رَسُولُ اللَّهِ ﷺ قَالَ وَحَدَّثَنِي بِهَا صَاحِبٌ لِي عَنْهُ