Is the ruling on the mustache the same as the ruling on the beard, and if trimming the mustache is recommended, does that mean that trimming the beard is also recommended? What is the reward for the beard, and is the intention of seeking reward required to attain it? What is the meaning of: "We used to let our mustaches grow, except during Hajj," and what is meant by "the mustaches of the beard"?

Lengthening the beard is obligatory. As for using the desirability of trimming the mustache as an argument for the desirability of lengthening the beard, this is an argument based on correlative indication (dalalat al-iqtiran), which is not considered a valid proof by most jurists of legal theory. There is no evidence specifying the reward for lengthening the beard. All acts of worship require an intention to attain reward, as the Prophet, peace and blessings be upon him, said: "Indeed, actions are by intentions, and indeed, every person will have what he intended." The term "sibāl" applies to both the mustache and the beard. The narration reported from Jabir, may Allah be pleased with him: "We used to let the sibāl grow, except during Hajj or Umrah," has been subject to different interpretations regarding what is meant by "sibāl" therein; some said it refers to the mustache and others said it refers to the beard.