Arabic (Original)
حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا سُفْيَانُ عَنِ الْأَعْمَشِ وَمَنْصُورٍ عَنْ ذَرٍّ عَنْ يُسَيْعٍ الْكِنْدِيِّ عَنِ النُّعْمَانِ بْنِ بَشِيرٍ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ إِنَّ الدُّعَاءَ هُوَ الْعِبَادَةُ ثُمَّ قَرَأَ { ادْعُونِي أَسْتَجِبْ لَكُمْ إِنَّ الَّذِينَ يَسْتَكْبِرُونَ عَنْ عِبَادَتِي }.
English Translation
Abdur-Razzaq narrated to us: Sufyan informed us, from al-A'mash and Mansur, from Dharr, from Yusay' al-Kindi, from al-Nu'man ibn Bashir, that the Messenger of Allah, peace and blessings be upon him, said: Supplication is worship - then he recited: {Call upon Me and I will respond to you; indeed those who are too arrogant to worship Me}.