Sahih Muslim Book 8, Hadith Number 3441.

Chapter: Tracing of relationship from physical features.

‘Aisha (Allah be pleased with her) reported: A physiognomist visited (our house) and Allah’s Messenger (May peace be upon him) was present, and Usama b. Zaid and Zaid b. Haritha were both lying asleep, and he (the physiognomist), said: These feet are related to one another. Allah’s Apostle (May peace be upon him) was pleased to hear this, and he was happy and informed ‘Aisha (Allah be pleased with her) about it.