This is what the SGPC Rehat Maryada states. But in the same Maryada it states Panj Pyare must read Japji Sahib, Jaap Sahib, Svaye (10 pauria, Sravag Sudh...), Choupai Sahib & full Anand Sahib (40 Pauria) - to create the Amrit.
Now the point of taking Amrit is to taste & experience that same Amrit everyday. So if we read the same 5 Bania as mentioned above with devotion as our Panj Pyare did in our Amrit Sanchar, we can then taste that Amrit daily when we recite these Bania in the morning too. The Rehras is then to be recited in the evening & Sohila at night.
This is the logical thing to do. To say we should read our Choupai Sahib & 6 Pauria of Anand Sahib (as opposed to 40 pauria that Panj Pyare read) is Rehras Sahib is not correct. The morning Bania are for the morning.
BUT - if you take Amrit & Panj Pyare tell you to do the 5 Bania as you stated in the question - then please please remember the same SGPC Rehat Maryada also states you should do 1 sehaj Paath of Sri Guru Granth Sahib Jee (a complete reading) every calendar month too as a minimum on top of the daily Nitnem
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