What did Muhammad (saw) advise to Ibn Abbas when he asked if he could speak to Muwaiya because he didn't pray more than one rak`a as witr?
 Narrated Ibn Abi Mulaika:                     Somebody said to Ibn `Abbas, "Can you speak to the chief of the believers Muwaiya, as he does not pray except one rak`a as witr?" Ibn `Abbas replied, "He is a Faqih (i.e. a learned man who can give religious verdicts) ."