Is it permissible to perform an act of worship with more than one intention?
For example, one may have to observe Sawm (Fast) to make up for a day missed during Ramadan. Is it permissible to intend both, making up for that day and observing Sawm on the Day of `Arafah (9th of Dhul-Hijjah), i.e. having two intentions; one for compensation and another for voluntary Sawm? Another example, may one combine the performance of Hajj and `Umrah (lesser pilgrimage) at the time of Hajj? Please inform us, may Allah reward you!
It is permissible to observe Sawm on the Day of `Arafah as the day one has to make up for, which replaces that day. However, by doing so, one will not receive the exclusive reward of observing Sawm on the Day of `Arafah as there is no evidence to substantiate it. As for combining the performance of Hajj `Umrah, it is approved of by the Prophet's (peace be upon him) statement:
`Umrah has been incorporated in Hajj until the Day of Resurrection.
(Part No. 10; Page No. 398) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.