Arabic (Original)
حَدَّثَنَا ابْنُ نُمَيْرٍ حَدَّثَنَا الْأَعْمَشُ عَنْ ذَرٍّ عَنْ يُسَيْعٍ عَنِ النُّعْمَانِ بْنِ بَشِيرٍ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ الدُّعَاءُ هُوَ الْعِبَادَةُ ثُمَّ قَرَأَ { ادْعُونِي أَسْتَجِبْ لَكُمْ }.
English Translation
Ibn Numayr told us: al-A'mash told us, from Dharr, from Yusay', from al-Nu'man b. Bashir, who said: The Messenger of Allah, peace and blessings be upon him, said: "Supplication is worship." Then he recited: {Call upon Me, I will respond to you.}
