Buddha and Jesus did not come to found a religion. (Their followers created a religion out of the teachings, and the rot set in.) They came to overturn the rigid religious rites and rituals, compulsory tithing, gender discrimination, and tyranny of the clergy over the illiterate masses, in India and Palestine respectively
Outer observances and rituals will never get you to Heaven. The way to salvation is inner observation - see your mind and heart and soul and clear it of all obstacles to the flow of Spirit.