Approximately 2 months ago I have published a post in English dedicated to "Nyasa-Yoga" (Prapatti) Verse from "Shree Varaha-Purana" - http://vishnudut1926.blogspot.ru/2017/02/prapatti-verses-from-shree-varaha-purana.html
This Verse is especially crucial for Shree Ramanuja-Sampradaya, because it is akin to Shree Varaha-Charama-Shloka and secures Moksha in just 1 life for Prapannas.
I have found this Verse in the Sanskrit Edition of "Shree-Varaha-Purana (link), it sounds in the following way (Chapter 142, Verse 62 in this English edition, but Verse 59 in this Sanskrit edition):
यस्यैतद् विदितं सर्वं न्यासयोगं वसुन्धरे |
योगे न्यस्य सदात्मानं मुच्यते न च संशयः ||
yasyaitad viditaM sarvaM nyAsayogaM vasundhare |
yoge nyasya sadAtmAnaM muchyate na cha saMshayaH ||
Translation: "But prapanna to whom Nyasa-Yoga (dedicating everything to Me) is known, gets Moksha, no doubt".
The entire excerpt in Sanskrit:
And the same Siddhanta in English - http://vishnudut1926.blogspot.ru/2017/02/prapatti-verses-from-shree-varaha-purana.html