In a dispute between cousins, the friend who does not serve them as a mediator with all his might, is not said to be a friend at all by wise men.
ज्ञातीनां हि मिथो भेदे यन्मित्रं नाभिपद्यते। सर्वयत्नेन माध्यस्थ्यं न तन्मित्रं विदुर्बुधाः॥