Full Sharh — Sahih Muslim 6864
حَدَّثَنَا أَبُو كَامِلٍ، فُضَيْلُ بْنُ حُسَيْنٍ حَدَّثَنَا يَزِيدُ، - يَعْنِي ابْنَ زُرَيْعٍ - حَدَّثَنَا التَّيْمِيُّ، عَنْ أَبِي عُثْمَانَ، عَنْ أَبِي مُوسَى، أَنَّهُمْ كَانُوا مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم وَهُمْ يَصْعَدُونَ فِي ثَنِيَّةٍ - قَالَ - فَجَعَلَ رَجُلٌ كُلَّمَا عَلاَ ثَنِيَّةً نَادَى لاَ إِلَهَ إِلاَ اللَّهُ وَاللَّهُ أَكْبَرُ - قَالَ - فَقَالَ نَبِيُّ اللَّهِ صلى الله عليه وسلم " إِنَّكُمْ لاَ تُنَادُونَ أَصَمَّ وَلاَ غَائِبًا " . قَالَ فَقَالَ " يَا أَبَا مُوسَى - أَوْ يَا عَبْدَ اللَّهِ بْنَ قَيْسٍ - أَلاَ أَدُلُّكَ عَلَى كَلِمَةٍ مِنْ كَنْزِ الْجَنَّةِ " . قُلْتُ مَا هِيَ يَا رَسُولَ اللَّهِ قَالَ " لاَ حَوْلَ وَلاَ قُوَّةَ إِلاَّ بِاللَّهِ " .
English Translation
Abu Musa reported that he (and his other companions) were climbing upon the hillock along with Allah's Messenger (ﷺ) and when any person climbed up, he pronounced (loudly):" There is no god but Allah, Allah is the Greatest." Thereupon Allah's Apostle (ﷺ) said: Verily, you are not supplicating One Who is deaf or absent. He said: Abu Musa or Abdullah b Qais, should I not direct you to the words (which form) the treasure of Paradise? I said: Allah's Messenger, what are these? He said:" There is no might and no power but that of Allah
Source
Sahih Muslim(صحيح مسلم)
The Book Pertaining to the Remembrance of Allah, Supplication, Repentance and Seeking Forgiveness
Hadith Number
6864