Jami` at-Tirmidhi 3479
جامع الترمذي#3479Hasanحَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُعَاوِيَةَ الْجُمَحِيُّ، - وَهُوَ رَجُلٌ صَالِحٌ حَدَّثَنَا صَالِحٌ الْمُرِّيُّ، عَنْ هِشَامِ بْنِ حَسَّانَ، عَنْ مُحَمَّدِ بْنِ سِيرِينَ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " ادْعُوا اللَّهَ وَأَنْتُمْ مُوقِنُونَ بِالإِجَابَةِ وَاعْلَمُوا أَنَّ اللَّهَ لاَ يَسْتَجِيبُ دُعَاءً مِنْ قَلْبٍ غَافِلٍ لاَهٍ " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ غَرِيبٌ لاَ نَعْرِفُهُ إِلاَّ مِنْ هَذَا الْوَجْهِ . سَمِعْتُ عَبَّاسًا الْعَنْبَرِيَّ يَقُولُ اكْتُبُوا عَنْ عَبْدِ اللَّهِ بْنِ مُعَاوِيَةَ الْجُمَحِيِّ فَإِنَّهُ ثِقَةٌ .
Abu Hurairah narrated that the Messenger of Allah (ﷺ) said:“Call upon Allah while being certain of being answered, and know that Allah does not respond to a supplication from the heart of one heedless and occupied by play.”
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:
In-book reference: 48:110