In the matter of training others to take on increased responsibility, there is no better example than that of Jesus.
فَقَدْ عَرَفَ أَنَّ خِدْمَتَهُ عَلَى ٱلْأَرْضِ سَتَنْتَهِي ،‏ وَأَنَّ تَلَامِيذَهُ سَيُوَاصِلُونَ ٱلْعَمَلَ مِنْ بَعْدِهِ .‏