salam

Nasihah (Advice): Knock at the door in a pleasant way and not louder than is necessary to make your presence known. Do not knock loudly and violently or ring the bell continuously. Remember that you are a visitor and not a thug or an oppressor who is raiding the house and frightening its occupants. Al-Bukhari reported in Al-Adab Al-Mufrad that the companions of the Prophet Sallallaahu Alayhi Wa Sallam used to knock on the door of the Prophet with the tips of their nails. This nimble and gentle knocking, is appropriate for those whose living quarters are close to the door. For those living farther from the door, it is appropriate to knock on their door, loud enough to enable them to hear it, without banging. In this regard Rasulullah Sallallaahu Alayhi Wa Sallam said,

إن الرفق لا يكون في شيء إلا زانه، ولا ينزع من شيء إلا شانه

'Gentleness adorns every act; its absence will tarnish it.'

(Sahih Muslim, Hadith #: 2594, Narrated by Aa’ishah)