Sayyiduna Anas (may Allah be pleased with him) says concerning this saying of Allah Almighty: "And We made iron soft for him, (saying): Make full coats of mail" that Luqman (the Wise) was present with Dawud (peace be upon him) while he was making a coat of mail, bending and weaving the iron with his hand like this. Luqman was amazed and wanted to ask, but his wisdom prevented him from asking. When he finished it, he put it on and said: This is an excellent coat of mail for battle. Then Luqman said: Silence is part of wisdom, but those who practise it are few. I wanted to ask you, but I remained silent until you explained it yourself. This hadith is sahih (authentic) on the condition of Imam Muslim, but they did not record it.

It is reported from Sayyiduna Ibn Abbas (may Allah be pleased with them both) concerning this saying of Allah Almighty: "And measure precisely in the linking (of the rings)" [Surah Saba: 11] , that he said: (It means) do not make the nails so thin that they become loose and slip out, nor make them so thick that they break the rings of the coat of mail; rather, keep it balanced and in proper measure. This is a gharib (unusual) statement in tafsir, and because of Abd al-Wahhab bin Mujahid the two Shaykhs did not record it.