to show respect.

What did the Prophet Muhammad (peace be upon him) say to Ubai when Allah (swt) ordered him to recite Surat-al-Bayina 98?
 Narrated Anas bin Malik:                     The Prophet said to Ubai, "Allah has ordered me to recite to you: 'Those who disbelieve (Surat-al- Bayina 98).' " Ubai said, "Has He mentioned my name?" The Prophet said, "Yes." On hearing this, Ubai started weeping.