Wasila or Shirk ?

Tawassul through the Prophet (Allah bless him and give him peace) and awliyaWhat is the ruling on supplicating Allah through an intermediary (tawassul), such as through the Prophet (Allah bless him and give him peace), and the (friends of Allah) awliya after their passing away. What is permissible and what is not?How Does One Make Tawassul Through The Prophet (Alihis Salam)?How does one make