Sayyiduna Imran bin Husayn (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) forbade selling weapons in a time of tribulation (fitnah).
Attributing it to the Prophet is an error (wahm); the mawquf version (as Imran's own view) is more correct, and it is also narrated from Abu Raja as his own saying.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10780
Hadith Gradingمحدثین:منكر
Hadith Takhrij«منكر۔ اخرجه بن عدي في الكامل 2/372»