1. First Hadeeth/ Madeenah Series/ Arabic Grammar

الدرس الاول في الحديث / اللغة العربية

عن جابر رضي الله عنه قال

قال رسول الله (صلى الله عليه و سلم) "لا تأكلوا
بالشمال فان الشيطان يأكل بالشمال" رواه مسلم

On the Authority of Jaabir (May Allaah be please with him) who said, that the Messenger of Allaah said: " Do not eat with the left (left hand) because the shaytaan eats with the left. Narrated by Muslim

كلمات في الحديث
Vocabulary in the Hadith

الشمال: ضد اليمين
the left (ash-shimaal) is opposite of right (al-yameen)

ضد الجنوب : الشمال بالفتح و ضد اليمين :الشمال بالكسر
the opposite of the South (al-januub) is the North (ash-shamaal) with a fatha الفتح and the opposite of left is right (ash-shimaal) with a kasr الكسر.

و الشيطان جمعه الشياطين
And shaytaan (the devil-iblees) its plural is the devils (ash-shayaaطeen)

تأكل : لا تأكل

تأكل = you eat or you're eating

لا تأكل = do not eat! ( this لا in front of this verb is call لا الناهية which is a negative command. For example: لا تشرب do not drink لا تجلس do not sit, etc.

Also when you put this negative command in front of a word it makes it مجزوم which means it takes a sukuun. So if the verb originally had a ضمة like tajlisu if لا ناهية is place in front in front it makes it la tajlis with out the ضمة .

In the hadith it mentions, " لا تأكلوا بالشمال " and this word is originally تأكلون but when لا الناهية is placed in front it becomes مجزوم by dropping the ن .


فوائد
Benefits

1. لا الناهية is a negative command and it makes the verb that it comes before مجزوم which means it takes سكون sukuun.

2. Changing of the حركات او اشكال the figure or marking could change the meaning. ex. الشمال و الشمال.

3. The plural of شيطان is شياطين.