Reuben ben Hoshke explained

Reuben Hoshke HaKohen (Sofer) (Hebrew: אברהם ראובן הכהן סופר; died 3 April 1673) was a Kabalist and rabbi of Prague. "Hoshke," his father's name, is a Polish diminutive for "Joshua," mistaken by G.B. De Rossi^[1] and Zunz^[2] for his family name.

He wrote:

• Yalḳuṭ Re'ubeni, a kabbalistic work (an imitation of the Yalḳuṭ Ḥadash) containing a collection of sayings taken from other kabbalistic works and arranged in alphabetical order (Prague, 1660)
• Yalḳuṭ Re'ubeni ha-Gadol, (ילקוט ראובני הגדול) a kabbalistic midrash on the Pentateuch arranged according to the order of the parashiyyot (Wilmersdorf, 1681)
• Davar Shebi-Ḳedushah, a manual of asceticism and repentance (Sulzbach, 1684)
• Oneg Shabbat, cabalistic reflections on the Sabbath laws, followed by an appendix entitled Derek Ḳabbalat Shabbat (ib. 1684).

References

Its bibliography:

• Lieben, Gal 'Ed, German part, p. 41; Hebrew part, p. 36;
• Steinschneider, Cat. Bodl. col. 2138;
• Fürst, Bibl. Jud. i. 412.

Notes and References

1. Dizionario, s.v. "Oski, Ruben"
2. Z. G. p. 402