Sahih Muslim 1094
صحيح مسلم#1094Sahihحَدَّثَنَا الْحَكَمُ بْنُ مُوسَى أَبُو صَالِحٍ، حَدَّثَنَا هِقْلُ بْنُ زِيَادٍ، قَالَ سَمِعْتُ الأَوْزَاعِيَّ، قَالَ حَدَّثَنِي يَحْيَى بْنُ أَبِي كَثِيرٍ، حَدَّثَنِي أَبُو سَلَمَةَ، حَدَّثَنِي رَبِيعَةُ بْنُ كَعْبٍ الأَسْلَمِيُّ، قَالَ كُنْتُ أَبِيتُ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم فَأَتَيْتُهُ بِوَضُوئِهِ وَحَاجَتِهِ فَقَالَ لِي " سَلْ " . فَقُلْتُ أَسْأَلُكَ مُرَافَقَتَكَ فِي الْجَنَّةِ . قَالَ " أَوَغَيْرَ ذَلِكَ " . قُلْتُ هُوَ ذَاكَ . قَالَ " فَأَعِنِّي عَلَى نَفْسِكَ بِكَثْرَةِ السُّجُودِ " .
Rabi'a b. Ka'b said:I was with Allah's Messenger (ﷺ) one night. and I brought him water and what he required. He said to me: Ask (anything you like). I said: I ask your company in Paradise. He (the Holy Prophet) said: Or anything else besides it. I said: That is all (what I require). He said: Then help me to achieve this for you by devoting yourself often to prostration
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 4:256