Bulugh al-Maram, Book 16, Hadith 1590 (English)

Abu Musa al-Ash'ari (RAA) narrated that the Messenger of Allah said to me, “O 'Abdullah bin Qais, would you like to be guided to one of the treasures of Paradise.” l here is no might nor power except with Allah.’ Agreed upon. An-Nasa’i added in his version, “there is no refuge from Allah except by turning to Him.’

وَعَنْ أَبِي مُوسَى اَلْأَشْعَرِيِّ ‏- رضى الله عنه ‏- قَالَ: قَالَ لِي رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ يَا عَبْدَ اَللَّهِ بْنَ قَيْسٍ! أَلَّا أَدُلُّكَ عَلَى كَنْزٍ مِنْ كُنُوزِ اَلْجَنَّةِ? لَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاَللَّهِ } مُتَّفَقٌ عَلَيْه ِ (2009)‏ ‏2 ‏- صحيح.‏ رواه البخاري (6384)‏، ومسلم (2704)‏، والنسائي في"عمل اليوم والليلة" (356)‏ والسياق للنسائي.‏

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also referenced under: Book 16, Hadith 1547 (In-Book)