She was a contemporary of the Islamic prophet Muhammad, and the wife of Malik ibn Nuwayra.
[1] In contrast, Ibn Khallikan’s narration provides more context, stating that Khalid executed Malik for withholding zakat and repeatedly referring to Muhammad as “your companion.” In his final words, Malik blamed Layla, to which Khalid replied that it was Allah who caused his death for renouncing Islam.
Ibn Kathir states that Khalid observed praiseworthy traits in her and married her once she became lawful for him.
[3] Al-Tabari mentions that Khalid waited for her 'iddah (waiting period) to end before marrying her, while Ibn al-Athir confirms the marriage without stating that Khalid consummated it on the same night.
Ibn Khallikan records two versions: one claiming that Khalid acquired her as part of the war booty and then married her, and another stating that she completed her 'iddah before accepting his proposal.