Ibn Mas’ud on ‘Urf: Good customs to Muslims are good to Allah

Zirr ibn Hubaysh reported: Abdullah ibn Mas’ud, may Allah be pleased with him, said, “Verily, Allah looked at the hearts of the servants and He found that the heart of Muhammad, peace and blessings be upon him, was the best among them, so He choose him for Himself and He sent him with His message. Then, He looked at the hearts of His servants after Muhammad, and He found that the hearts of his companions were the best among them. Thus, He made them into the ministers of His Prophet, fighting for the sake of His religion. Whatever the Muslims view as good is good to Allah, and whatever they view as evil is evil to Allah.”

Source: Musnad Ahmad 3589

Grade: Sahih (authentic) according to Ahmad Shakir

عن زر بن حبيش عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ قَالَ إِنَّ اللَّهَ نَظَرَ فِي قُلُوبِ الْعِبَادِ فَوَجَدَ قَلْبَ مُحَمَّدٍ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ خَيْرَ قُلُوبِ الْعِبَادِ فَاصْطَفَاهُ لِنَفْسِهِ فَابْتَعَثَهُ بِرِسَالَتِهِ ثُمَّ نَظَرَ فِي قُلُوبِ الْعِبَادِ بَعْدَ قَلْبِ مُحَمَّدٍ فَوَجَدَ قُلُوبَ أَصْحَابِهِ خَيْرَ قُلُوبِ الْعِبَادِ فَجَعَلَهُمْ وُزَرَاءَ نَبِيِّهِ يُقَاتِلُونَ عَلَى دِينِهِ فَمَا رَأَى الْمُسْلِمُونَ حَسَنًا فَهُوَ عِنْدَ اللَّهِ حَسَنٌ وَمَا رَأَوْا سَيِّئًا فَهُوَ عِنْدَ اللَّهِ سَيِّئٌ

3589 مسند أحمد مسند المكثرين من الصحابة

5/211 المحدث أحمد شاكر إسناده صحيح وهو موقوف على ابن مسعود في مسند أحمد