As-Salaam alaikum,

Speaking on the Path to Allah, Subhanahu Wa Ta'ala, is to traverse His Straight Path with which He sent His Messenger, Prophet Muhammad, Sallallahu alaihi Wasallam, and fro which He revealed His Book, the Qur'anil-Majeed.

In Hadith No. 76 of Sunan Imam Tirmidhi, it was related on the authority of Nawwas Ibn Sam'an that the Messenger of Allah, Sallallahu alaihi Wasallam,
said:--
"Allah has set forth the following as a parable: there is a road that leads straight
to the destination. On either side of the road, there is a wall in which there are
open doors, with curtains hanging on them. From the remote end of the wall, a voice
calls 'proceed straight and do not turn aside.' Whenever someone intends to lift a curtain
from the door another voice calls from above, 'Beware! Do not lift the curtain; otherwise
you will be lured inside.''


The Prophet, Sallallahu alaihi Wasallam, explained the parable by saying that the Straight Path is Islam, the Walls are the Limits imposed by Allah, the open doors are the Things that He Prohibited, the voice which calls from the end of the road is the Qur'an and the voice which calls from above is Allah's Monitor
in the heart of every believer.