"The Messenger of Allah said: 'Whoever can promise me one thing. Paradise will be his." (One of the narrators) Yahya said: "Here a statement which means: That he will not ask the people for anything."
قَالَ رَسُولُ اللَّهِ ﷺ مَنْ يَضْمَنْ لِي وَاحِدَةً وَلَهُ الْجَنَّةُ قَالَ يَحْيَى هَا هُنَا كَلِمَةٌ مَعْنَاهَا أَنْ لاَ يَسْأَلَ النَّاسَ شَيْئًا
"The Messenger of Allah said: 'Whoever can promise me one thing. Paradise will be his." (One of the narrators) Yahya said: "Here a statement which means: That he will not ask the people for anything." (Using translation from Nasāʾī 2590)
قَالَ رَسُولُ اللهِ ﷺ «مَنْ يَضْمَنُ لِي وَاحِدَةً وَلَهُ الْجَنَّةُ؟» قَالَ يَحْيَى قَالَ هَاهُنَا كَلِمَةً مَعْنَاهَا أَلَّا يَسْأَلَ النَّاسَ شَيْئًا