28اذهَب بِكِتابي هٰذا فَأَلقِه إِلَيهِم ثُمَّ تَوَلَّ عَنهُم فَانظُر ماذا يَرجِعونَ(Irfan-ul-Quran)Go with this letter of mine and deliver it to them. Then withdraw from them and see what they turn to.’