I get the feeling you won't accept the Salafi opinion on Mawlid which also has no Shar`ee basis The Hadith I quoted previously is a strong proof as it shows that you can wish that Allah would bless any month for you and your companions. I'll get you the Shar`ee basis insha-Allah. قد جاءكم رمضان شهر مبارك افترض الله عليكم صيامه تفتح فيه أبواب الجنة ويغلق فيه أبواب الجحيم وتغل فيه الشياطين فيه ليلة خير من ألف شهر من حرم خيرها فقد حرم Abu Huraira (ra) narrated that the Prophet (SAWS) delivered a Sermon to the Sahaba (ra) when Ramadan came, he (SAWS) said: "Ramadan has come to you a Blessed month, and Allah has prescribed for you its Fasting, in it the doors open..." al-Albani and Ahmad Shakir said Sahih and Suyuti said Hasan. But the Hadith is not required and wishing that the Muslims be blessed on this blessed month the essence of Islam and can be proven from the narrations of good Akhlaq and morals and kindness and good neighborly relations.