Fighting for kingship

Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) narrates that the Prophet (peace and blessings be upon him) said: "The worst of those killed is one (killed) between two groups, one of which seeks kingship."
Al-Tabarani recorded it in al-Mu'jam al-Awsat; its chain contains Abd al-Awwal Abu Nu'aym, whom I do not know, and the rest of its narrators are thiqat (trustworthy).

Tharwan bin Milhan relates: We were sitting in the mosque when Sayyiduna Ammar bin Yasir (may Allah be pleased with him) passed by us. We said: "Narrate to us what you heard from the Prophet (peace and blessings be upon him)." He said: I heard the Prophet (peace and blessings be upon him) say: "After me there will be people who will seize kingship, and they will kill one another over it." The narrator said: We said to him: "If anyone other than you had narrated this to us, we would not have believed him." Sayyiduna Ammar (may Allah be pleased with him) said: "It will happen."
Ahmad, al-Tabarani and Abu Ya'la recorded it; its narrators are the narrators of the Sahih, except Tharwan, who is thiqah (trustworthy).

Yahya bin Habban relates that he was with Sayyiduna Abdullah bin Umar (may Allah be pleased with them both), and Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) said to him: "When there is civil strife (fitnah), you people will consider killing to be nothing."
Ahmad recorded it; its narrators are the narrators of the Sahih, except Yahya bin Habban, whom Ibn Hibban declared thiqah (trustworthy). (Al-Haythami says:) I say: Some hadiths of this kind will come in the chapter concerning the trials (that are to occur).