Zayd ibn Arqam
When Zaid was older, he retold the hadith of the two weighty things, during the Banu Umayyad rule. One version is quoted in Sahi Muslim where he, after being asked several times, tells about the event and unwillingly concludes that Muhammad's wives are not part of the Ahl ul-Bayt. In another version, he gives a more vague answer.
He did not give allegiance to Abu Bakr, until Ali supposedly did so [1].
References
- ^ Tarikh al-Yaqubi, as quoted in Peshawar Nights on al-islam.org [1]. Also, a list composed of sources such as Ibn Hajar Asqalani and Baladhuri, each in his Ta'rikh, Muhammad Bin Khawind Shah in his Rauzatu's-Safa, Ibn Abdu'l-Birr in his Isti'ab