Silsilah as-Sahihah 432 — Is food cooked on fire a nullifier of Wudu?

Mahmood bin Tahlah says: I said to Abu Salamah: Indeed, your stepfather Salim does not perform ablution after eating food cooked on fire. He struck Salim on the chest and said: I bear witness for the wife of the Messenger, Sayyidah Umm Salamah (may Allah be pleased with her), and she bears witness for the Messenger of Allah (peace and blessings be upon him) that he (peace and blessings be upon him) used to perform ablution after eating food cooked on fire.