Musannaf Ibn Abi Shaybah 26807 — Those who permitted wearing a ring

It is narrated from al-Salt bin Abdullah bin Nawfal that he said: I saw Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both). His ring was on his right hand. And I think that he also mentioned that the Prophet (peace and blessings be upon him) used to wear it in the same way.