Arabic (Original)
حَدَّثَنَا عَفَّانُ حَدَّثَنِي مُعَاذُ بْنُ هِشَامٍ حَدَّثَنِي أَبِي عَنْ قَتَادَةَ عَنْ عَبْدِ اللَّهِ بْنِ بُرَيْدَةَ عَنْ أَبِيهِ أَنَّ نَبِيَّ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ لَا تَقُولُوا لِلْمُنَافِقِ سَيِّدَنَا فَإِنَّهُ إِنْ يَكُ سَيِّدَكُمْ فَقَدْ أَسْخَطْتُمْ رَبَّكُمْ عَزَّ وَجَلَّ.
English Translation
'Affan narrated to us: Mu'adh ibn Hisham narrated to me: my father narrated to me from Qatadah from 'Abdullah ibn Buraydah from his father, that the Prophet of Allah, peace and blessings be upon him, said: "Do not say to the hypocrite 'our master' (sayyidana), for if he is indeed your master, you have angered your Lord, Mighty and Majestic."