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عن أبي قتادة رضي الله عنه قَالَ : قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ لَا يُمْسِكَنَّ أَحَدُكُمْ ذَكَرَهُ بِيَمِينِهِ, وَهُوَ يَبُولُ, وَلَا يَتَمَسَّحْ مِنْ اَلْخَلَاءِ بِيَمِينِهِ, وَلَا يَتَنَفَّسْ فِي اَلْإِنَاءِ رواه البخاري ومسلم
It is not permitted as a matter of ethic and purification to do any of the following 3 things:
1. Touching or even worse, holding one’s penis with one’s right hand while urinating, whether briefly or throughout the course of urination.
3. Breathing into a drinking vessel
Fiqh of the Hadīth
(a) The wordings of the Hadīth imply impermissibility. However, does this mean that it’s harām to do so?
Majority of the scholars: No, it’s rather makrūh (detested, reprehensible) to do so.
(b) Does the rule apply in all circumstances or it’s limited to urination alone?
Assuming that one urinates holding his penis with his left hand &, after that decides to wipe it using pebbles, how does he achieve this? Two opinions have emanated from the
(1) He should hold his penis with his left & the pebbles with his right. He should hold the pebbles steady & move his penis with his left on the pebbles. With this, he has avoided two things: holding the penis with the right hand, and wiping it with it.
The first view is more correct & closer to achieving the injunctions in the Hadīth.
(d) The rule of using the left to wipe one’s private part after relieving oneself
(e) The right hand is to be honoured. The Prophet is reported to always prefer the right in all honorable things. This is why he prohibited eating, drinking, giving and taking with the left hand. All must be done with the right.
(f) Breathing into the vessel while drinking is prohibited the same way blowing (hot) food or drink is prohibited.
Does this apply to the one drinking from bottles (plastic or glass) and its likes?
(1) The prophet forbade drinking from the mouth of the waterskin (siqā’).
Note: The above explanations were taken from إحكام الأحكام شرح عمدة الأحكام by the illustrious Ibn Daqīq al-’īd vol.1, 103-104
And Allāh knows best...