Is sending rhyming and metered supplication messages that end with "Jum'ah Mubarakah" on Friday permissible or an innovation (bid'ah)?

Whoever does that as a supplication for his brother or to maintain ties, there is no harm in it. However, whoever does it on the basis that it is a fixed Sunnah by which one draws closer [to Allah] in and of itself, has innovated into the religion something that is not part of it.