وَالَّذِينَ يَصِلُونَ مَا أَمَرَ اللَّهُ بِهِ أَن يُوصَلَ وَيَخْشَوْنَ رَبَّهُمْ وَيَخَافُونَ سُوءَ الْحِسَابِ
and those who join what Allah has commanded to be joined, and fear their Lord, and are afraid of an adverse reckoning
Agha Ali Puya Commentary
Commentary on Quran 13:21
[Pooya/Ali Commentary 13:21] The Holy Prophet said: (i) To worship Allah, pray the prescribed salat regularly. (ii) Safeguard yourself against evil with full awareness of Allah's laws and commands. (iii) Do not associate any with Allah. (iv) Love and take care of your family. (Reported by Abu Ayyub Ansari)