And about being awake at night and praying...
And about being awake at night and praying, he had heard from the Holy Prophet (s.a.w.a.) that sleeping with wuzoo is equal to being awake at night and praying all the while; and about reading one complete Quran each day, he had heard from the Holy Prophet (s.a.w.a.) that reciting three Sura-e-Tauheed (chapter 112) is equal to reciting one Quran. He heard the Holy Prophet (s.a.w.a.) saying to Hazrat Ali (a.s.) that Ali (a.s.) and his followers are like Sura-e-Tauheed in the Quran.
When a person recites Sura-e-Tauheed once it is like reciting one third of the Quran, if he recites it twice, it is like reciting two third of the Quran and if he recites three times, it is like reciting the whole of the Quran.
Then the Holy Prophet (s.a.w.a.) continued that a person who is just a verbal friend of Hazrat Ali (a.s.), his faith will be only one third complete; the person who is literally as well as from his heart a friend of Hazrat Ali (a.s.), then his faith is two third complete; whereas a person who is not only a literal and true friend of Hazrat Ali (a.s.), but also practically follows Hazrat Ali (a.s.), his faith is complete.
If all those on earth were as friendly towards Hazrat Ali (a.s.) as the Shias, then God would not have put any being to trial or punish them. Etiquettes to be observed before sleeping and the place of sleeping: According to reliable traditions, the Holy Prophet (s.a.w.a.) has cursed three types of people: a) Those who eat alone b) Those who travel alone c) Those who sleep in an empty house The probability in the last case is that the man who sleeps alone will go mad on account of fear.
According to Imam Ja'far-e-Sadiq (a.s.), a person who is forced by circumstances to sleep alone in a desert or a house should recite the following prayer before going to sleep: ‘O Allah be my friend in depression and anxiety and help me in my loneliness.’ According to another reliable tradition from Imam Ja'far-e-Sadiq (a.s.), sleeping alone on the roof of the house is prohibited and also on that roof which has no encircling walls. This applies both to men and women.
When people asked him whether it was permissible to sleep on a roof having wall on three sides, he replied in the negative and said that walls should be on all the four sides of the rood. In certain traditions the height for these walls was ascertained. Some state it as 2 yards and others as 1¼ yards.