Abu Hurairah (RA) reported Allah's Messenger (ﷺ) as saying: Your oath should be about something regarding which your companion will believe you. 'Amr said: By which your companion will believe you.
Narrated Abu Hurairah: The Messenger of Allah ﷺ as saying: Your oath should be about something regarding which your companion will believe you. Musaddad said: Abdullah bin Abi Salih narrated to me. Abu Dawud said: Both of them refer to the same person: 'Abbad bin Abu Salih and Abdullah bin Abi Salih.
Shaykh Umar Farooq Saeedi
Benefits and Issues: Swearing oaths by way of hints, allusions, or equivocations (tawriyah) in order to resolve disputes among Muslims is in no way beneficial or permissible. Rather, it is unlawful. However, if there is a confrontation with disbelievers (kuffar) or oppressors (zalimun), then concession is granted.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 3255
´It was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said:` "Your oath is as your companion understands it to be."
Maulana Ataullah Sajid
Benefit: This means that if someone swears an oath and makes an ambiguous statement, intending a meaning that is true, but the listener does not understand that meaning and instead understands a meaning which, according to him, is incorrect, then this will be considered a false oath. The meaning of the oath that is considered valid is the one understood by the person administering the oath.
Source: Commentary on Sunan Ibn Mājah by Mawlānā ‘Atā’ullāh Sājid, Page: 2121