Explanation

Abu Asad is the likely correct answer as he is historically associated with hosting companions during migrations. Hazrat Zubair is incorrect because he was a prominent companion but not specifically known for this role in relation to Abu Ayub Ansari's context. Khalid ibn Zayd is incorrect because while he was a companion, the specific historical record points elsewhere for this particular event. Abu Zahad is incorrect as there is no strong direct link establishing him as the host in this specific narrative.