يَا أَهْلَ ذَا الْمَغْنَى وَقِيتُمْ شَرًّا / وَلَا لَقِيتُمْ مَا بَقِيتُمْ ضَرًّا
O people of this dwelling, may you be protected from evil and encounter no harm for as long as you live.
The guest's initial blessing ends in sharran / ḍarran, giving the lines an audible rhyme. He blesses the household before naming his own urgent need, making his arrival less abrupt and encouraging a charitable hearing.
These are lines of verse, so line-ending rhyme is the relevant concept rather than prose sajʿ. Euphony serves the act of requesting hospitality, but a pleasant form cannot by itself authenticate everything the visitor may later claim.
PatternLiterary rolesajʿPaired or patterned prose endingsrhymeMatching endings in lines of verse