Sayyiduna Imran bin Husayn (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) forbade selling weapons in times of tribulation (fitnah).
Al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Bahr bin Kaniz, who is matruk (abandoned).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب البيوع / 6524