Schneemelcher in NTA (rev. ed.; so also the 1st English edition, 2.327) 2.218 wrote:
The beginning of the APl has not survived, but C. Schmidt has made the first episode available from some fragments. A small Coptic fragment (Ry) contains some lines of a narrative from the life of Paul.
Schneemelcher leaves us to search for ourselves where Schmidt made the Coptic fragment available. The John Rylands fragmant at Manchester was first announced by W. E. Crum, and there is, to my knowledge, no editio princeps, except what Pierre Cherix has prepared for his forthcoming volume of the Coptic Acta Pauli for the Corpus Christianorum Series Apocryphorum. In his PRAXEIS PAULOU, Schmidt says that Crum sent to him an photograph of the leaf which he collated anew but could add no new readings; he did not make the Coptic text available but did provide the following German translation of the decipherable bit of this fragment (117) :
“Gehe nun hinauf nach …. in der .. [Feier] des Fastens.” Darauf flogen die Worte: “Als nun Paulus dieses gehoert hatte, ging er in grosser Freude nach Damaskus. Als er aber hineingegangen war, fand er sie …. in der …. [Feier] des Fastens.”
For the sake of convenience, I append a jpg of W. E. Crum, BJRL 20: 501: