Nasai

(1) The mute also live in this world. They also get married. They too may need divorce, and they generally communicate through gestures; therefore, it is necessary that gestures be considered valid. However, it is essential that the gesture be clear, so that the intended meaning is easily understood. Ordinary people also communicate through gestures, so a gesture will be valid, whether it is made by a mute person or by any other individual, provided that the gesture is clear.

(2) The insistence of the Messenger of Allah (sallallahu alayhi wa sallam) on taking Aisha (radi Allahu anha) along was perhaps because Aisha (radi Allahu anha) was also hungry. He did not consider it appropriate to give himself preference over her in eating. This is a sign of noble character. As a poet has said: "A companion [وَشِبْعُ الْفَتٰی لُؤْمٌ اِذا جَاعَ صَاحِبُهُ]" "If a companion is hungry, it is blameworthy for one’s own stomach to be full." And perhaps the refusal in Persian was because the broth would have sufficed only for him. And Allah knows best.