He asked Ayesha about onions, and she replied, "The last meal the Messenger of Allah ﷺ ate was a meal that contained onions."
حدثنا إبراهيم بن موسى أخبرنا ح و حدثنا حيوة بن شريح حدثنا بقية عن بحير عن خالد
أنه سأل عائشة عن البصل فقالت إن آخر طعام أكله رسول الله ﷺ طعام فيه بصل
[Its chain is daif]. Ahmad reported it, 6/89, from Haywa bin Shurayh, through him. Nasai also related it in Kubra, hadith 6679.Baqiyyah did not clearly state that he heard it in the chained succession, and Khiyar bin Salama was not deemed reliable by anyone except Ibn Hibban.