﴿ وَٱلَّذِينَ هُم بِشَهَٰدَٰتِهِمْ قَآئِمُونَ ﴾

“and who stand firm whenever they bear witness;”

and who are forthwith with their testimony bi-shahādatihim a variant reading has the plural bi-shahādātihim ‘their testimonies’ those who offer them and do not withhold them