Islam had placed them on an equal footing. It was justice and truth that had to be defended. He did not look upon him as a leader whose mistakes were to be covered up or justified but rather as an equal partner in carrying out a responsibility and an obligation. Neither did he come out in opposition to Khalid out of prejudice or passion but out of sincere advice and mutual self-criticism which Islam has hallowed. Religion is sincere advice.
Religion is sincere advice.
When the Prophet heard what Khalid had done, he was deeply grieved and made long and fervent supplication to his Lord. Salim lived close to the Prophet and the believers. He was never slow or reluctant in his worship nor did he miss any campaign. The Prophet, may God bless him and grant him peace, passed away to his Lord. Abu Bakr assumed responsibility for the affairs of Muslims and immediately had to face the conspiracies of the apostates which resulted in the terrible battle of Yamamah.