EXTRA · Side-ring · Parashas Shoftim · Passuk 19:09
When you keep all this commandment to do it, which I command you today, to love the Eternal your God and to walk in His ways all the days, then you shall add for yourself another three cities to these three.
Chazal / classical source (beyond TT-numbered main-ring units): Makkot 9b–10a.
Lemma: כִּי תִשְׁמֹר אֶת כׇּל הַמִּצְוָה.
English: ‘When you keep all this commandment’ – the matter is conditional.
Derash on the condition (Bavli) — the expansion of the refuge system depends on observance.
The obligation to add three further cities of refuge is bound to the keeping of the mitzvah and the walking in Hashem’s ways.