هذا بند العقد بشأن الصيانة.

Arabic usually does not use a present-tense verb to be in sentences like this.

So هذا بند العقد بشأن الصيانة literally looks like:

• هذا = this
• بند العقد = the clause of the contract
• بشأن الصيانة = regarding maintenance

A natural English translation adds is: This is the contract clause regarding maintenance.

In grammar terms, this is a nominal sentence:

• هذا is the topic-like element
• بند العقد بشأن الصيانة is the predicate

Because بند is a masculine singular noun.

In MSA, the demonstrative must agree with the noun:

• هذا = this (masculine singular)
• هذه = this (feminine singular)

So:

• هذا بند = this clause/item
• هذه صيانة = this maintenance/service act

Even though English does not mark gender on this, Arabic does.

Because بند is the first part of an iḍāfa construction, also called a construct phrase.

Here the phrase is:

• بند العقد
• literally: clause of the contract

In an iḍāfa:

• the first noun usually does not take الـ
• the first noun also does not take tanwīn
• the second noun determines whether the whole phrase is definite

So بند العقد is correct, not البند العقد.

An iḍāfa is a very common Arabic noun connection meaning something like:

• X of Y
• or sometimes Y’s X

In this sentence:

• بند العقد = clause of the contract

So:

• بند = clause/item/article
• العقد = the contract

This is how Arabic often expresses relationships that English may show with of, possession, or noun stacking.

Other similar examples:

• باب البيت = the door of the house
• مدير الشركة = the company’s manager

Because it is the second noun in an iḍāfa.

In Arabic, the second term of an iḍāfa is genitive. So in fully vowelled form, you would have:

• بندُ العقدِ

with العقدِ in the genitive.

If you are not writing case endings, the spelling stays the same, but the grammatical role is still there.

For the same reason: it is the first term of an iḍāfa.

Compare:

• بندٌ = a clause / an item
• بندُ العقدِ = the clause of the contract

When a noun becomes the first element of an iḍāfa:

• it loses tanwīn
• it usually does not take الـ

So بند here is neither written nor pronounced as بندٌ.

بشأن means regarding, concerning, or with regard to.

It is often treated as a preposition-like expression in learning materials, but it is historically made from:

• بـ = with / regarding
• شأن = matter, concern, affair

Then it is followed by a noun phrase:

• بشأن الصيانة = regarding maintenance

So in this sentence, بشأن الصيانة modifies the clause and tells you what subject it deals with.

Because Arabic often uses the definite article with abstract or general categories where English may use no article.

So الصيانة here can naturally mean:

• maintenance
• or the maintenance matter/topic

This is normal Arabic usage. English might simply say maintenance, but Arabic often prefers الصيانة when referring to the known topic or category.

Without الـ, صيانة would sound less anchored and more indefinite.

You could say هذا البند if you only mean this clause.

But the actual sentence is more specific:

• هذا بند العقد
• this is the clause of the contract

Here بند is not standing alone; it is linked to العقد in an iḍāfa.

So:

• هذا البند = this clause
• هذا بند العقد = this is the contract’s clause / this is a clause of the contract

The second version gives more information.

Yes, and that would also be natural Arabic, but the nuance is slightly different.

• بند العقد = the contract clause / the clause of the contract
• بند من العقد = a clause from the contract / one clause of the contract

Using من makes the partitive idea more explicit: one clause among the contract’s clauses.

So both can work, but they are not exactly identical in tone.

A fully vowelled version is:

هذا بندُ العقدِ بشأنِ الصيانةِ

A helpful pronunciation guide is:

hādhā bandu l-ʿaqdi bi-shaʾni ṣ-ṣiyānati

A few notes:

• بندُ is nominative here
• العقدِ is genitive because of the iḍāfa
• شأنِ is genitive after بـ
• الصيانةِ is genitive as part of the phrase after بشأن
• in الصيانة, the ص is a sun letter, so ال is pronounced as assimilation: aṣ-ṣiyāna...

In normal unvowelled Arabic text, you would usually just see:

هذا بند العقد بشأن الصيانة