Narrated Abd Allaah bin Muhammad: We were in the company of Aishah. When her food was brought in, al-Qasim stood up to say his prayer. Thereupon, Aishah said: I heard the Messenger of Allaah ﷺ say: Prayer should not be offered in presence of meals, nor at the moment when one is struggling with two evils (e. g. when one is feeling the call of nature. )
Hadith Referenceسنن ابي داود / كتاب الطهارة / 89
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم (560)
Benefits and Issues: ➊ There is a background to this narration: the mother of Qasim bin Muhammad was an umm walad (concubine), and due to the influence of her upbringing, there was some irregularity (lahn) in Qasim’s Arabic speech. Upon this, Sayyidah Aisha radi Allahu anha disciplined him, which made him somewhat upset, and he stopped eating and began to pray. At this, Sayyidah Aisha radi Allahu anha narrated this hadith to him and fulfilled the duty of enjoining good (amr bil-ma‘ruf).
➋ It should be noted that hunger and the need to relieve oneself are natural matters that are not under a person’s control. The Shari‘ah has specifically commanded that one should relieve oneself of these before prayer. However, actions that are within a person’s control—such as leaving some work incomplete or having something preoccupy the mind—then the religious requirement is that a person should clear his mind of such matters and turn his attention to prayer, and either complete his work before prayer or after prayer. For example, during travel, there is a concession to combine two prayers (jam‘ bayn al-salatayn). If a mother is being disturbed by her child, it is permitted for her to pick up the child and pray.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 89
Abu Hurairah (RA) reported Allah's Apostle (ﷺ) as saying: When anyone wipes himself with pebbles (after answering the call of nature) he must make use of an odd number and when any one of you performs ablution he must snuff in his nose water and then clean it.
Shaykh Maulana Abdul Aziz Alvi
Hadith Commentary: Vocabulary of the Hadith:
(1) ISTAJMARA: To clean the place of urine and feces with JIMAR (small stones), i.e., to perform istinja (purification after relieving oneself).
(2) LIYANTATHIR: After putting water into the nose (during ablution), to clean the nose, i.e., to expel mucus or similar substances from it.
Source: Tuhfat al-Muslim: Commentary on Sahih Muslim, Page: 560