In this ordeal, Uthman remained steadfast and firm. He did not waver for a moment in his faith in Islam. On the other hand, the greater the pressure on him, the greater became his faith in Islam. Seeing that nothing could deter Uthman from his faith in Islam, his uncle left him to himself. His mother gave expression to her annoyance by enforcing a boycott against him. In this ordeal two persons in the family supported the cause of Uthman. Out of these one was Saadi, a maternal aunt of Uthman, and a sister of Urwa. The other was Umm Kulsum, a step-sister of Uthman, a daughter of Urwa from Uqba bin Abi Muheet.
Saadi was a poetess and she composed some verses praising the stand of Uthman. She said:
"Allah called the noble souled Uthman to the right way,And he swore allegiance to Muhammad, the Prophet of God. Verily, Allah guides those whom He likes to the Truth".
Umm Kulsum in spite of the strong opposition of her parents accepted Islam. The Holy Prophet married her to his adopted son Zaid b Harith. She thus became a daughter-in-law of the Holy Prophet.