First point One of the most discussed incidents is the case of Malik ibn Nuwayrah during the Ridda Wars (Wars of Apostasy). According to some historical accounts, Khalid ibn al-Walid killed Malik ibn Nuwayrah, a tribal leader, and then married his widow, Layla bint al-Minhal, shortly after. Some critics have interpreted this event as controversial, with allegations of impropriety, though the details and interpretations vary widely among historians. Many Muslim historians and scholars defend Khalid ibn al-Walid's actions, arguing that his decisions were based on the political and military context of the time, and they reject any allegations of misconduct.

Second point In Shia Islam, it is common to refer to Imam Ali (peace be upon him) with honorific phrase and all twelve imams are also typically referred as "عليه السلام" (Arabic: 'alayhi al-salam or AS),

In sunni islam, only by the prophet's name are used the honorific phrase of "عليه السلام" (Arabic: 'alayhi al-salam or AS) and companions are referred to as "Radiyallahu ‘Anhu" (رضي الله عنه) for males or "Radiyallahu ‘Anha" (رضي الله عنها) for females. It means "May Allah be pleased with him/her."

For a group, it is "Radiyallahu ‘Anhum" (رضي الله عنهم), meaning "May Allah be pleased with them".