Vaishnava Samhita. Gopinatha Charitam. Vol II Book VI Chp 6 Shloka 28

क्षत्रवृत्तिं विसृज्याथ साधुवृत्तिं समाश्रितः  |
लालस्वामी महाभागो लालदासोsभवत्ततः   ||

The fortunate Lalaswami gave up the life of a kshatriya and took up the life of a sadhu and received the lame 'Laladasa'.