Ali bin Rabi'ah (may Allah have mercy on him) said: A man came to him with his son as a substitute (for himself). Sayyiduna Ali (may Allah be pleased with him) said: The opinion of an old man is better than the presence of a youth.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب آداب القاضي / 20334