2. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from ’Isma‘il ibn Sa‘d al-Ash‘ariy who has narrated the following
“I once asked al-Rida’ (a.s.), about the case of a man who swears but his mind is on something other than what he has taken oath for. He (the Imam) said, ‘The oath is for that which is in one’s mind.’”