(a) Urwah (may Allah have mercy on him) narrates that among those who took part in Badr with the Messenger of Allah (peace and blessings be upon him) was Dhul-Shimalayn bin Abd Amr bin Nadlah bin Ghubshan (may Allah be pleased with him), from the tribe of Khuza'ah; and among the Muslims who were martyred on the day of Badr were two men of Banu Zuhrah bin Kilab: one of them Umayr bin Abi Waqqas (may Allah be pleased with him), and the other Dhul-Shimalayn bin Abd Amr bin Nadlah (may Allah be pleased with him), their ally from Khuza'ah, of Banu Ghubshan. Musa bin Uqbah said the same in his Maghazi, as did Muhammad bin Ishaq bin Yasar; Muhammad said: He left no descendants.
(b) Imam al-Bayhaqi (may Allah have mercy on him) said: As for Dhul-Yadayn (may Allah be pleased with him), who informed the Prophet (peace and blessings be upon him) of his forgetfulness, he remained alive after the death of the Messenger of Allah (peace and blessings be upon him). Our Shaykh Abu Abdullah al-Hafiz (may Allah have mercy on him) mentioned it in this way.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3927