Leadership suitability based on honorable lineage
Nahj al-Balāgha|Volume 1|Book 3|Chapter 436
٤٣٦. وَقَالَ (عليه السلام): أوْلَى النَّاسِ بِالْكَرَمِ مَنْ عَرَقتْ فيه الْكِرَامُ.
436. Amīr al-mu’minīn, peace be upon him, said: The most appropriate person for an honourable position is he who descends from the people of honour.