ولا يسقط أصل النية؛ لأن الإمساك لا يصير صوماً إلا بالنية.
Basic intention is not dispensed with, because abstention does not become a legal fast without intention.
Intention to fast means intending the act of worship. Specification of intention further identifies its type, such as a Ramadan fast or a make-up fast.
For an ordinary resident obliged to fast Ramadan, the legal designation of the day may remove the need to name the fast separately in the specific cases discussed; it does not eliminate intention altogether.
Example: Someone who happens not to eat or drink all day without intending worship has not thereby performed a valid religious fast.