Swamy Alavandhar.
One of the most important acharyas of Sri Vaishnava tradition.
He was the foremost to identify that Swami Ramanuja was the future of Sri Vaishnavam and ordered all his disciples to give due respect to Swami Ramanuja.
(44) - AdhikAra Sangaraham - Swamy Sri Desikan.
நீளவந்து இன்றுவிதிவகையால்நினைவொன்றியநா
மீள வந்து இன்னும்வினையுடம் பொன்றிவிழுந்துழலாது
ஆளவந்தாரென வென்றருள் தந்து விளங்கிய சீர்
ஆளவந்தாரடியோம் படியோமினி யல்வழக்கே.
(44) For ages , we struggled and suffered in this karma bhUmi as nithya samsAris.
In this birth, however , we are blessed to benefit from the essence of upadEsams of the One who incarnated to rule us ( aaLa vanthAr) and held firmly in our mind the cardinal tenets taught by him like the Jeevan is different from the body and the other
Tatthvams.We became the daasAs to Swamy AaLavanthAr.
From here on , we shall never engage in the studies of Para Mathams that teach inappropriate subjects in the context of our ujjeevanam.
The key passage here is: " AaLavanthAr adiyOm ini alvazhakkup padiyOm".