Abdul-Rahman bin Abd Rabb Kaaba reported,

I entered the mosque and found Abdullah bin Amr bin As sitting in the shade of the Kaabah with people gathered around him. I approached and sat down with them.He said, "We were with the Messenger of Allah ﷺ on a journey. We stopped at a place where some of us were repairing their tents, some were practicing archery, and some were tending to their grazing animals, when the Messenger of Allah's ﷺ caller announced, 'The prayer is gathering.'So we gathered around the Messenger of Allah ﷺ, and he said, 'There has never been a prophet before me except that it was his duty to guide his nation to the best of what he knew for them and to warn them against the worst of what he knew for them. As for this nation of yours, its well-being has been placed in its early generations, while its later generations will be afflicted with trials and matters you will find detestable. Trials will come, each making the next seem lighter by comparison. A trial will come and the believer will say, 'This is my destruction,' then it will pass. Another trial will come and the believer will say, 'This one, this one.' So whoever wishes to be saved from the Fire and admitted to Paradise, let his death come while he believes in Allah and the Last Day, and let him treat people the way he wishes to be treated. Whoever pledges allegiance to a leader, giving him his handclasp and the fruit of his heart, let him obey him if he is able. If another comes contesting him, then strike the neck of that other one.'"I drew close to him and said, "I implore you by Allah, did you yourself hear this from the Messenger of Allah ﷺ?"He pointed with his hands to his ears and his heart and said, "My ears heard it and my heart memorized it."I said to him, "This cousin of yours, Muawiya, commands us to consume our wealth among ourselves wrongfully and to kill one another, while Allah says, 'You who believe, do not consume your wealth among yourselves wrongfully, but only through trade by mutual consent. And do not kill yourselves. Indeed, Allah is ever Merciful to you.'" [Nisa 4:29]He was silent for a while, then said, "Obey him in obedience to Allah, and disobey him in disobedience to Allah."

عن عبد الرحمن بن عبد رب الكعبة قال

دخلت المسجد فإذا عبد الله بن عمرو بن العاص جالس في ظل الكعبة، والناس مجتمعون عليه، فأتيتهم، فجلست إليه فقال: كنا مع رسول الله ﷺ في سفر، فنزلنا منزلا، فمنا من يصلح خباءه، ومنا من ينتضل، ومنا من هو في جشره، إذ نادى منادي رسول الله ﷺ: الصلاة جامعة. فاجتمعنا إلى رسول الله ﷺ فقال: إنه لم يكن نبي قبلي إلا كان حقا عليه أن يدل أمته على خير ما يعلمه لهم وينذرهم شر ما يعلمه لهم، وإن أمتكم هذه جعل عافيتها في أولها، وسيصيب آخرها بلاء، وأمور تنكرونها وتجيء فتنة، فيرقق بعضها بعضا، وتجيء الفتنة، فيقول المؤمن هذه مهلكتي، ثم تنكشف وتجيء الفتنة، فيقول المؤمن: هذه هذه فمن أحب أن يزحزح عن النار، ويدخل الجنة فلتأته منيته، وهو يؤمن بالله واليوم الآخر، وليأت إلى الناس الذي يحب أن يؤتى إليه، ومن بايع إماما، فأعطاه صفقة يده، وثمرة قلبه، فليطعه إن استطاع، فإن جاء آخر ينازعه فاضربوا عنق الآخر. فدنوت منه، فقلت له: أنشدك الله أنت سمعت هذا من رسول الله ﷺ، فأهوى إلى أذنيه وقلبه بيديه وقال: سمعته أذناي ووعاه قلبي فقلت له: هذا ابن عمك معاوية يأمرنا أن نأكل أموالنا بيننا بالباطل ونقتل أنفسنا والله يقول: {يأيها الذين ءامنوا لا تأكلوا أموالكم بينكم بالبطل إلا أن تكون تجرة عن تراض منكم ولا تقتلوا أنفسكم إن الله كان بكم رحيما} [النساء: ٢٩] قال: فسكت ساعة ثم قال: أطعه في طاعة الله، واعصه في معصية الله.