Arabic (Original)
حَدَّثَنَا أَبُو الْمُغِيرَةِ حَدَّثَنَا مُعَانُ بْنُ رِفَاعَةَ قَالَ حَدَّثَنِي عَلِيُّ بْنُ يَزِيدَ عَنِ الْقَاسِمِ عَنْ أَبِي أُمَامَةَ قَالَ مَرَّ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بِرَجُلٍ وَهُوَ يَقْرَأُ قُلْ هُوَ اللَّهُ أَحَدٌ فَقَالَ أَوْجَبَ هَذَا أَيْ وَجَبَتْ لِهَذَا الْجَنَّةُ.
English Translation
Abu al-Mughira narrated to us: Mu'an ibn Rifa'a narrated to us and said: Ali ibn Yazid narrated to me, from al-Qasim, from Abu Umama, who said: The Messenger of Allah (peace and blessings be upon him) passed by a man who was reciting "Say: He is Allah, the One," and he said, "This has made it obligatory" — meaning Paradise had become obligatory for that man.