Gnaneshwar Charitam Vol III Book VIII Chp 2 Shlokas 19 - 20
श्रीज्ञानेक्ष्वर उवाच
विप्राः संप्राप्य विक्ष्वासं सत्यवाक्येन केवलम् |
कुरुध्वं द्विजसंस्कारं जाबालेर्गौतमो यथा ||
ब्राह्मणा ऊचुः
अब्राह्मणानां संस्कारं कथं कुर्याम बालकाः |
युष्माकं नैव जानीमो गोत्रं स्वच्छन्दवर्तिनाम् ||
Shri Gnanadeva requested
Oh! Brahmanas! Please have belief in my words and perform our upanayanam as Sage Gautama did for Jabali.
The Brahmanas replied
Oh! Children! You are roaming about as orphans. We do not know your lineage. How can we perform upanayanam for you who are not know to be true brahmanas ?