A Jew from Hira asked me which one of the two periods Musa (i.e. Prophet Moses) completed. I said, "I don't know, (but wait) till I see the most learned 'Arab and inquire him about it." So, I went to Ibn ʿAbbas and asked him. He replied, "Moses completed the longer and better period." Ibn ʿAbbas added, "No doubt, an apostle of Allah always does what he says."
قَضَى أَكْثَرَهُمَا وَأَطْيَبَهُمَا إِنَّ رَسُولَ اللَّهِ ﷺ إِذَا قَالَ فَعَلَ