Member of the Hilf al-Fudul
Hazrat Abu Bakr (ra) was also part of the Hilf al-Fudul. This was a special pact that was formed to help the poor and the oppressed. In ancient times, some noble-hearted individuals thought that an alliance should be formed in which they vow to ensure that each person is given their due rights and to assist them in attaining what is rightfully theirs; also that they would stop the cruelty of the oppressors. In Arabic, because one’s right is also known as “fadl”, and its plural is “fudul”, that is why this pact became known as “Hilf al-Fudul”. According to other narrations, it is also said that since many members of this alliance had the word fadl in their names, this agreement was named Hilf al-Fudul.
In any case, after the Battle of Fujar, Zubair bin Abdul-Muttalib, a paternal uncle of the Holy Prophet (sa), was most probably inspired by this war and proposed to revive this alliance once again. Therefore, upon this idea of his, the representatives from the different tribes of the Quraish gathered at the home of Abdullah bin Jud‘an where arrangements for a feast had been made from him. All the representatives unanimously took a mutual oath that they would forever restrain injustice and assist the oppressed. The ones who took part in this agreement include the Banu Hashim, Banu Muttalib, Banu Asad, Banu Zuhrah and Banu Taym. The Holy Prophet (sa) was also present at this occasion and joined in this agreement. Hence, on one occasion during the time of his prophethood, the Holy Prophet (sa) said, “In the house of Abdullah bin Jud‘an, I once partook in such an oath that even if I was called to it today, in the age of Islam, I would respond to it.”
(Sirat Khatamun-Nabiyyin, 104-105)
With regard to Hazrat Abu Bakr (ra) participating in the Hilf al-Fudul, an author states that the Holy Prophet (sa) was present in this alliance as well as Hazrat Abu Bakr Siddiq (ra).
(Sayeduna Siddiq Akbar (ra) ke Shab o Roz, Muhammad Hudhaifah Lahori, p. 19, Maktabah al-Haramain, Lahore)