Mantra 8

सोऽधस्ताच्छकटस्य पामानं कषमाणमुपोपविवेश तं हाभ्युवाद त्वं नु भगवः सयुग्वा रैक्व इत्यहं ह्यरा३ इति ह प्रतिजज्ञे स ह क्षत्ताविदमिति प्रत्येयाय ॥ ४.१.८ ॥

In plain words

He came upon a man sitting beneath a cart scratching his sores, and sat down beside him and said, "Sir, art thou Raikva of the cart?" "I am indeed," he said. And the attendant came back saying, "I have found him."