Shaikh Khawaja Alauddin Attar (Allah have mercy on him) said,

‘It is a highly recommended practice (similar to the status of sunnat e muakkidah) to keep company (suhba) of the Shaikh. If not possible daily then it should be twice or thrice per month. If even this is not possible then there should be regular correspondence with the Shaikh so that one is not included in those who are totally absent (from the Shaikh’s suhba).’

Sawanih Mawlana Abdullah Shah rehmatullah aleh, page x