Sayyidi wa sanadi Shaikh Mufti Taqi Usmani (Allah preserve & protect him) mentioned the following in Ramadan 2017 as well as Ramadan 2018:

When seekers used to ask me for permission to stay in my company, I would previously excuse myself as I used to think that I would not be able to give them their due time. However later Allah Ta’ala put in the heart that who am I to give benefit to anyone? If a sincere seeker comes then due to his sincerity and desire, Inshallah Allah Ta’ala will grant him benefit.

Ramadan 1439, malfuzaat collated by Br KaiserNizamani #13